Power quality and voltage sag indices in electrical power systems

A Polycarpou - … Generation and Distribution Systems and Power …, 2011 - books.google.com
In modern electrical power systems, electricity is produced at generating stations,
transmitted through a high voltage network, and finally distributed to consumers. Due to the …

A new index for on line critical voltage calculation of heavily loaded feeders

A Polycarpou, H Nouri - 2005 IEEE Russia Power Tech, 2005 - ieeexplore.ieee.org
A new set of voltage sag indices based on conventional power flow equations is proposed in
this paper to supervise the power quality of a system through predicting voltage sags. The …

Validation of a proposed voltage sag prediction methodology for interconnected systems during motor starting

A Polycarpou, H Nouri - 2009 44th International Universities …, 2009 - ieeexplore.ieee.org
A new methodology for power system quality improvement, through voltage sags profile
prediction is proposed in this paper. The voltage sag is caused by an increase in reactive …

Energy saving through replacement of traffic light systems

MS Georgiou, A Polycarpou - 2018 IEEE International Energy …, 2018 - ieeexplore.ieee.org
The European union recognizes the large amount of energy consumed for lighting, including
Traffic Light Systems (TLS), which reaches 15% of the energy consumption in the EU …

Investigation into the compatibility and effectiveness of a new mathematical online voltage sag index

A Polycarpou, H Nouri - International Journal of Power and …, 2010 - inderscienceonline.com
A new mathematical index is investigated in this paper which improves the power quality of
a system through providing a tool for online voltage sag mitigation. The index is developed …

Development and Investigation of a Proposed Voltage Sag Index

A Polycarpou - International Journal of Energy Optimization and …, 2012 - igi-global.com
A proposed voltage sag index based on power flow equations is developed and
investigated in this paper. The index supervises the power quality of a system, through …

[PDF][PDF] Critical voltage proximity index Investigation for transmission systems

A Polycarpou, H Nouri, D Micu - Transaction on PTD, Global Journal of …, 2012 - engedu2.net
A developed mathematical critical voltage proximity index is investigated in this paper.
Mathematical description of the index is provided. Background theory on established …

[PDF][PDF] Investigation into the compatibility and effectiveness of a new mathematical online voltage sag

A Polycarpou, H Nouri - researchgate.net
A new mathematical index is investigated in this paper which improves the power quality of
a system through providing a tool for online voltage sag mitigation. The index is developed …

[PDF][PDF] New Methodology for the Prediction of Motor Starting Effect on Bus Voltages of Interconnected Power Systems

A Polycarpou, H Nouri, A Azizpour - American Journal of Electrical …, 2016 - academia.edu
A new methodology is proposed in this paper capable of predicting the impact of induction
motor load starting on the bus voltages of an interconnected power system. The profile of the …

Investigation of a Critical Voltage Proximity Index at Distribution Level

A Polycarpou, H Nouri - 2011 46th International Universities' …, 2011 - ieeexplore.ieee.org
A developed mathematical index is investigated in this paper. The index is applied on
distribution test systems, and verified for its compatibility through the use of a tap changing …